Now, it's important to remember to avoid using an aerosol-based dry shampoo — or any aerosol hair product, for that matter — while you're on the plane, as it could easily set off the fire alarm.

For those who make a sport out of avoiding washing their hair (raises hand), dry shampoo spray is a godsend. However, in recent years, aerosol sprays have faced criticism. Thanks to social media, ...